School officials are working to reduce the overall cost of the high school fields project, after bids came in $1 million over the approved amount. Bids were requested for different parts of the project. According to School Committee chairman Ray Estes, officials have decided to go forward with a $4.2 million bid for the main portion of the project, which includes construction of a multipurpose turf field. Bids for the concession stand and bathrooms were rejected early this month, and groups have since convened to redesign the building to make it less costly. “We hope to get Planning Board approval of this modification and go out to bid within the next four weeks or so,” Estes said in an e-mail. Meanwhile, fund-raising was restarted to try to close the gap between the $4.2 million approved at Town Meeting and the final anticipated cost for the entire project. Estes said last week that the gap is now $126,500and officials “expect to have all funds required in the next several weeks.”